Portal de Periódicos da CAPES

Relativistic nuclear optical models

1983; American Institute of Physics; Volume: 28; Issue: 3 Linguagem: Inglês

10.1103/physrevc.28.1256

1538-4497

L. S. Celenza, C. M. Shakin,

Atomic and Molecular Physics

Recently it has been shown that the use of a relativistic impulse approximation allows one to calculate a nucleon optical potential for use in the Dirac equation. Excellent fits have been obtained for differential cross sections and spin-dependent observables for energies greater than 400 MeV. In this work we provide a general description of the form of the momentum-space optical potential for use in the Dirac equation. It is shown that there are eight invariant functions that determine the potential. Procedures for calculating these functions are given. (In the case of nuclear matter only three of these functions are required to specify the nucleon self-energy.)NUCLEAR REACTIONS Nucleon optical potentials for the Dirac equation; general analysis of scattering of relativistic nucleons from nuclei.